Fig. 1

Upregulation of lnc-NORAD in breast cancer cell lines and tumor tissues. a Lnc-NORAD RNA levels were detected by RT-PCR in different cell lines. The MCF-7 and MDA-MB-231 cells are breast cancer cells, while the MCF10A cells are normal mammary cells. GAPDH RNA was used as an internal control. Data were averaged from triplicate experiments. b Statistical comparison of lnc-NORAD expression levels in patient tissue samples. Lnc-NORAD RNA levels were quantitated from breast tumor tissues and the adjacent normal tissues using the same method described above. ***p < 0.001, vs the control. c Survival analysis indicated that the high-expression groups had worse survival compared to the low-expression groups with the Kaplan–Meier method